Code and data for: Arrested coarsening in active colloidal suspensions driven by nonreciprocal electrohydrodynamic interactions

This repository contains the experimental data, numerical simulation data, and analysis codes used in the manuscript: “Arrested coarsening in active colloidal suspensions driven by nonreciprocal electrohydrodynamic interactions.” The dataset includes raw experimental movies, particle-tracking data, agent-based simulation codes, simulation outputs, and analysis scripts used to generate the figures in the manuscript and supplementary information. The repository is organized so that each directory corresponds to a specific analysis or simulation workflow used in the paper. Main components include: S-LPairs: Experimental tracking data and analysis codes used for pair-motion analysis (Fig. 1d–f). OpticalFlow: Optical-flow analysis of experimental movies used to compute velocity fields (Fig. 2d,e). largeDomainABM: Agent-based simulations used to generate the coarsening dynamics shown in Fig. 3. smallDomainABM: Agent-based simulations in a small domain corresponding to Fig. 4 and several supplementary figures. OpticalFlowSim: Optical-flow analysis applied to simulation movies (Fig. 3c,d). analysis_inSI: Analysis codes used for supplementary figures (Figs. S5–S7 and S9). simulation_inSI: Additional simulation codes used to generate supplementary results (Figs. S2, S8, and S9). Detailed instructions for reproducing the figures are provided in reproduce_figures.md. Definitions of simulation parameters encoded in filenames are provided in parameter_table.md. This dataset enables reproduction of the experimental analyses and numerical simulations presented in the manuscript. Related publication: Shoma Hara, Masazumi Okada, Keisuke Kittaka, Sho Tanami, Yuichi Iwasaki, Hiroaki Ishikawa, Kiwamu Yoshii, and Yutaka Sumino, Arrested coarsening in active colloidal suspensions driven by nonreciprocal electrohydrodynamic interactions, Physical Review Letters, DOI: https://doi.org/10.1103/96ky-d1p9